Review on Honeywell Replacement Wicking Filter A, 3 Pack: Efficient White Filters (3 Count) by Jon Booth

These are not the cheapest filters but they definitely last the longest. I've tried many of these. They have the best value for money. Buy some bacteriostatic and add a few drops each time you fill up your water tank and you won't have a problem with mold. I used them for 3-4 weeks compared to others I've been lucky enough to get a week with. When they start to discolour, I soak them, rinse them and reuse them until they're set and no more water evaporates.